<template>
  <transition name="move">
  <div v-show="showFlag" class="food" ref="food">
    <div class="food-content">
      <div class="image-header">
        <img :src="food.image" alt="">
        <div class="back" @click="hide">
          <i class="icon-arrow_lift"></i>
        </div>
      </div>
      <div class="details-content">
         <h1 class="title">{{food.name}}</h1>
        <div class="details">
          <span class="sell-count">月售{{food.sellCount}}份</span>
          <span class="rating">好评率{{food.rating}}%</span>
        </div>
        <div class="price">
          <span class="now">￥{{food.price}}</span><span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
        </div>
        <div class="cartbutton-wrapper">
          <cartbutton  @add="addFood" :food="food"></cartbutton>
        </div>
        <transition name="fade">
          <div @click.stop.prevent="addFirst" class="buy" v-show="!food.count || food.count===0">
            加入购物车
          </div>
        </transition>
      </div>
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
           <h1 class="title">商品信息</h1>
           <p class="text">{{food.info}}</p>
        </div>
      <split></split>
      <div class="rating">
        <h1 class="title">商品评价</h1>
        <ratingselect @select="selectRating" @toggle="toggleContent" :selectType="selectType" :onlyContent="onlyContent" :desc="desc" :ratings="food.ratings"></ratingselect>
        <div class="rating-wrapper">
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType,rating.text)" v-for="rating in food.ratings" class="rating-item">
                 <div class="user">
                    <span class="name">{{rating.username}}</span>
                    <img  class="avatar" :src="rating.avatar" alt="" width="12px" height="12px">
                 </div>
                 <div class="time">{{rating.rateTime | formatDate}}</div>
                 <p class="text">
                   <span :class="{'icon-thumb_up': rating.rateType===0, 'icon-thumb_down': rating.rateType===1}"></span>
                   {{rating.text}}
                 </p>
              </li>
            </ul>
              <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
        </div>
      </div>
    </div>
  </div>
  </transition>
</template>

<script type="text/ecmascript-6">
  import Bscroll from 'better-scroll'
  import Vue from 'vue'
  import {formatDate} from '../../common/javascript/data'
  import cartbutton from '../cartbutton/cartbutton.vue'
  import split from '../split/split.vue'
  import ratingselect from '../ratingselect/ratingselect.vue'

  //  const POSITIVE = 0
  //  const NEGATIVE = 1
  const ALL = 2

  export default {
    props: {
      food: {
        type: Object
      }
    },
    data () {
      return {
        showFlag: false,
        selectType: ALL,
        onlyContent: true,
        desc: {
          all: '全部',
          positive: '推荐',
          negative: '吐槽'
        }
      }
    },
    methods: {
      show () {
        this.showFlag = true
        this.selectType = ALL
        this.onlyContent = false
        this.$nextTick(() => {
          if (!this.scroll) {
            this.scroll = new Bscroll(this.$refs.food, {
              click: true
            })
          } else {
            this.scroll.refresh()
          }
        })
      },
      hide () {
        this.showFlag = false
      },
      addFirst (event) {
        if (!event._constructed) {
          return
        }
        this.$emit('add', event.target)
        Vue.set(this.food, 'count', 1)
      },
      addFood (target) {
        this.$emit('add', target)
      },
      selectRating (type) {
        this.selectType = type
        this.$nextTick(() => {
          this.scroll.refresh()
        })
      },
      toggleContent () {
        this.onlyContent = !this.onlyContent
        this.$nextTick(() => {
          this.scroll.refresh()
        })
      },
      needShow (type, text) {
        if (this.onlyContent && !text) {
          return false
        }
        if (this.selectType === ALL) {
          return true
        } else {
          return type === this.selectType
        }
      }
    },
    filters: {
      formatDate (time) {
        let date = new Date(time)
        return formatDate(date, 'yyyy-MM-dd hh:mm')
      }
    },
    components: {
      cartbutton, split, ratingselect
    }
  }
</script>

<style lang="stylus" rel="stylesheet/stylus">
  @import "../../common/stylus/mixin.styl"
  .food
    position: fixed
    left: 0
    top: 0
    bottom: 48px
    z-index: 30
    width: 100%
    background: #fff
    transform: translate3d(0, 0, 0)
    &.move-enter-active, &.move-leave-active
      transition: all 0.2s linear
    &.move-enter, &.move-leave-active
      transform: translate3d(100%, 0, 0)
    .image-header
      position: relative
      width: 100%
      height: 0
      padding-top: 100%
      img
        position: absolute
        top: 0
        left: 0
        width: 100%
        height: 100%
    .back
      position: absolute
      top: 10px
      left: 0
      .icon-arrow_lift
        display: block
        padding: 10px
        font-size: 20px
        color: #fff


    .details-content
      position: relative
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 8px
        font-size: 14px
        font-weight: 700
        color: rgb(7, 17, 27)
      .details
        margin-bottom: 18px
        line-height: 10px
        height: 10px
        font-size: 0
        .sell-count, .rating
          font-size: 10px
          color: rgb(147, 153, 159)
        .sell-count
          margin-right: 12px
      .price
        font-weight: 700
        line-height: 24px
        .now
          margin-right: 8px
          font-size: 14px
          color: rgb(240, 20, 20)
        .old
          text-decoration: line-through
          font-size: 10px
          color: rgb(147, 153, 159)
      .cartbutton-wrapper
        position: absolute
        right: 18px
        bottom: 18px
      .buy
        position: absolute
        right: 18px
        bottom: 18px
        z-index: 10
        height: 24px
        line-height: 24px
        padding: 0 12px
        box-sizing: border-box
        border-radius: 12px
        font-size: 10px
        color: #fff
        background: rgb(0, 160, 220)
        opacity: 1
        &.fade-enter-active, &.fade-leave-active
          transition: all 0.2s
        &.fade-enter, &.fade-leave-active
          opacity: 0
          z-index: -1
    .info
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 6px
        font-size: 14px
        color: rgb(7, 17, 27)
      .text
        line-height: 24px
        padding: 0 8px
        font-size: 12px
        color: rgb(77, 85, 93)
    .rating
      padding-top: 18px
      .title
        line-height: 14px
        margin-left: 18px
        font-size: 14px
        color: rgb(7, 17, 27)
      .rating-wrapper
        padding: 0 18px
        .rating-item
          position: relative
          padding: 16px 0
          border-1px(rgba(7, 17, 27, 0.1))
          .user
            position: absolute
            right: 0
            top: 16px
            line-height: 12px
            font-size: 0
            .name
              display: inline-block
              margin-right: 6px
              vertical-align: top
              font-size: 10px
              color: rgb(147, 153, 159)
              .avatar
                border-radius: 50%

          .time
            margin-bottom: 6px
            line-height: 10px
            font-size: 10px
            color: rgb(147, 153, 159)
          .text
            line-height: 16px
            font-size: 12px
            color: rgb(7, 17, 27)
            .icon-thumb_up, .icon-thumb_down
              margin-right: 4px
              line-height: 16px
              font-size: 12px
            .icon-thumb_up
              color: rgb(0, 160, 220)
            .icon-thumb_down
              color: rgb(147, 153, 159)

        .no-rating
          padding: 16px 0
          font-size: 12px
          color: rgb(147, 153, 159)

</style>
